Re: [PATCH v3 08/18] nvmet-fcloop: add missing fcloop_callback_host_done

[Daniel Wagner]

On Wed, Apr 02, 2025 at 07:08:06PM +0200, Daniel Wagner wrote:
> > There is NULL pointer check in fcloop_call_host_done eventually. It is
> > in 'nvmet-fcloop: update refs on tfcp_req'. That hunk should be in this
> > patch though.
> 
> Looking again with fresh eyes. Patch #3 is adding ref counting to the
> lport. 'nvmet-fcloop: update refs on tfcp_req' (the patch before this
> one) adds the NULL check. Nothing will crash here. Actually, I've run
> into this crash when testing before the NULL check was there :)

After a bit more testing and a new KASAN report, it looks like yet
another life tracking for tfcp_req/fcpreq is a bit off. The whole
conditional free/put indicates a something is wrong IMO. Let me see if I
can resovle this a bit cleaner.